cov khoom

  • N-Ethylmorpholine CAS 100-74-3

    N-Ethylmorpholine CAS 100-74-3

    N-Ethylmorpholine yog cov kua tsis muaj xim. Cov khoom no yog soluble hauv dej, cawv thiab ether.
    Nws tuaj yeem siv los ua ib qho nruab nrab rau cov kuab tshuaj, catalysts, dyes, pharmaceuticals, thiab surfactants. Nws tuaj yeem siv los ua ib qho catalyst hauv PU teb. Nws feem ntau yog siv los ua cov kuab tshuaj rau cov roj thiab cov resins, thiab tseem tuaj yeem siv los ua ib qho nruab nrab rau cov organic synthesis.
  • 4-Methylmorpholine CAS 109-02-4

    4-Methylmorpholine CAS 109-02-4

    N-methylmorpholine yog ib qho tseem ceeb organic tshuaj nruab nrab. Nws yog cov kuab tshuaj zoo heev, emulsifier, corrosion inhibitor, polyurethane ua npuas ncauj catalyst, thiab tuaj yeem siv los ua tshuaj tua kab nruab nrab. Cov txheej txheem synthesis ntawm Chemicalbook feem ntau suav nrog N-methylation txoj kev siv morpholine li raw khoom, cyclization txoj kev siv diethanolamine li raw khoom, cyclization txoj kev siv diethanolamine ua raw khoom, thiab cov txheej txheem synthesis siv dichloroethane li raw khoom, thiab lwm yam.
    Nws yog cov kua uas tsis muaj xim tsis muaj pob tshab. Cov yam ntxwv tsw. Soluble nyob rau hauv cov kuab tshuaj organic, miscible nrog dej thiab ethanol.Media rau kws tshuaj thiab tshuaj synthesis Organic synthesis raw cov ntaub ntawv, analytical reagents, extraction solvents, stabilizers rau chlorinated hydrocarbons, corrosion inhibitors, catalysts, tshuaj ntau lawm, thiab lwm yam.
  • p-Phenylenediamine CAS 106-50-3

    p-Phenylenediamine CAS 106-50-3

    p-Phenylenediamine (Lus Askiv p-Phenylenediamine), tseem hu ua Ursi D, yog ib qho yooj yim tshaj plaws aromatic diamines. Cov khoom ntshiab yog dawb rau lavender muaju, uas hloov ntshav lossis xim av tsaus thaum raug huab cua.
    xim. Me ntsis soluble hauv dej txias, soluble hauv ethanol, ether, chloroform thiab benzene.
    Nws tuaj yeem siv los npaj azo dyes, siab molecular polymers, thiab tseem tuaj yeem siv los tsim cov plaub hau dyes, roj hmab antioxidants thiab cov duab tsim tawm. Nws yog tsuas yog siv rau aramid, azo dyes, sulfur dyes, acid dyes, thiab kuj yuav siv tau raws li cov plaub hau dub D. Ntau lawm ntawm Mao Pi Dub DB, Mao Pi Brown N2, thiab Tshuaj Roj Hmab tshuaj antioxidants DNP, DOP, thiab MB. Nws kuj yog siv los ua raw khoom rau cov plaub hau zas plaub hau kom hniav zoo nkauj Ursi D series, roj av polymerization inhibitor thiab tsim tawm. Raws li cov tshuaj zas xim, p-phenylenediamine tam sim no tau tso cai siv rau hauv kev tsim cov plaub hau dyes, tab sis muaj cov kev txwv meej ntawm kev siv.
    Nws yog tau los ntawm kev txo p-nitroaniline nrog hlau hmoov nyob rau hauv acidic nruab nrab. Muab cov hmoov hlau rau hauv hydrochloric acid, kub rau 90 ° C, thiab ntxiv p-nitroaniline thaum nplawm. Tom qab qhov sib ntxiv ua tiav, hnov ​​​​mob ntawm 95-100 ° C rau 0.5h, thiab tom qab ntawd ntxiv cov concentrated hydrochloric acid dropwise kom ua tiav cov tshuaj tua kab mob. Tom qab txias, neutralize nrog saturated sodium carbonate tov rau pH 7-8, boil thiab lim thaum kub, thiab ntxuav lub lim ncuav mog qab zib nrog dej kub. Muab cov filtrate thiab ntxuav cov kua, mloog zoo nyob rau hauv lub siab txo, crystallize los ntawm txias los yog distill nyob rau hauv lub siab txo kom tau p-phenylenediamine nrog ib tug yield ntawm 95%.
  • 1,2-Dichloroethane CAS 107-06-2

    1,2-Dichloroethane CAS 107-06-2

    1,2-Dichloroethane yog cov xim tsis muaj xim, pob tshab oily kua nrog chloroform zoo li tsw thiab saj qab zib. Soluble nyob rau hauv dej txog 120 zaug, miscible nrog ethanol, chloroform thiab ether. Muaj peev xwm yaj cov roj thiab roj, roj, paraffin.
    Feem ntau yog siv rau hauv kev tsim cov yas chloride, oxalic acid thiab ethylenediamine, thiab tseem tuaj yeem siv los ua cov kuab tshuaj, cov tshuaj fumigants, detergents, extraction agents, hlau degreasing agents, thiab lwm yam.
    Txoj kev tsim khoom:
    1. Direct synthesis txoj kev ntawm ethylene thiab chlorine: chlorine ethylene thiab chlorine nyob rau hauv 1,2-dichloroethane nruab nrab los tsim crude dichloroethane thiab ib tug me me npaum li cas ntawm polychlorides, ntxiv alkali thiab flash evaporate kom tshem tawm acidic tshuaj thiab ib co boiling tshuaj, ntxuav nrog dej. kom txog thaum nruab nrab, azeotropic lub cev qhuav dej, thiab distillation kom tau txais cov khoom tiav. 2. Ethylene oxychlorination method: Ethylene yog ncaj qha chlorinated nrog chlorine los ua dichloroethane. Cov hydrogen chloride rov qab los thaum lub sij hawm tawg ntawm dichloroethane los tsim cov yas chloride, cov pa roj carbon monoxide Chemicalbook (cua) thiab ethylene preheated rau 150-200 ° C yog dhau los ntawm tooj liab chloride catalyst loaded ntawm alumina ntawm lub siab ntawm 0.0683-0.1033MPa. , react ntawm qhov kub ntawm 200-250 ° C, thiab cov khoom crude yog txias (condensing feem ntau ntawm trichloroacetaldehyde thiab ib feem ntawm cov dej), pressurized, thiab refined kom tau cov khoom dichloroethane. 3. Txoj kev ncaj qha chlorination ntawm ethylene los ntawm cov roj av tawg los yog coke qhov cub. Tsis tas li ntawd, 1,2-dichloroethane kuj yog cov khoom siv los ntawm kev tsim cov chloroethanol thiab ethylene oxide.
  • Tom ntej: Sodium Chloride CAS 7647-14-5

    Tom ntej: Sodium Chloride CAS 7647-14-5

    Sodium chloride yog cov khoom tseem ceeb ntawm cov lus ntsev thiab pob zeb ntsev. Nws yog ib qho ionic compound thiab yog xim tsis muaj xim thiab pob tshab cubic crystal. Sodium oxide muaj ntau nyob rau hauv dej hiav txwv thiab ntuj ntsev pas dej. Nws tuaj yeem siv los tsim cov tshuaj chlorine, hydrogen, hydrochloric acid, sodium hydroxide, chlorate, hypochlorite, bleaching hmoov thiab hlau sodium. Nws yog ib qho tseem ceeb chemical raw khoom; Chemicalbook yuav siv tau nyob rau hauv cov zaub mov Seasoning thiab marinating ntses, nqaij thiab zaub, nrog rau rau salting tawm xab npum thiab tanning tawv, thiab lwm yam.; Sodium chloride tuaj yeem siv los ua physiological saline rau kev kho mob thiab kev sim physiological, xws li sodium poob, dej poob, ntshav poob, thiab lwm yam. Sodium chloride tuaj yeem tsim los ntawm kev tsom mus rau crystalline seawater los yog ntuj ntsev pas dej los yog dej ntsev zoo.
    Sodium chloride yog ib qho tseem ceeb chemical raw khoom rau kev npaj cov tshuaj chlorine gas, metallic sodium, caustic soda, soda tshauv thiab lwm yam tshuaj, thiab yog dav siv nyob rau hauv dyes, ceramics, metallurgy, tawv, xab npum, tub yees, thiab lwm yam. Nyob rau hauv analytical chemistry, Sodium chloride yog ib qho reagent rau kev txiav txim siab ntawm fluorine thiab silicate, thiab cov qauv ntsuas reagent rau calibrating nyiaj nitrate.
    Sodium chloride yog ib qho tseem ceeb matrix rau kev tswj cov kua dej ntxiv. Nws kuj muaj qee yam kev tswj hwm ntawm cov kua qaub-puag tshuav ntawm lub cev kua. Nws kuj yog ib qho tseem ceeb hauv kev tswj hwm kev ntxhov siab neuromuscular. Feem ntau yog siv los tiv thaiv thiab kho mob hyponatremic syndrome, sodium deficiency dehydration (xws li kub hnyiab, raws plab, poob siab, thiab lwm yam), kub stroke, thiab lwm yam.; sab nraud siv rau tshuaj ntxuav qhov muag, qhov ntswg, qhov txhab, thiab lwm yam; Kev txhaj tshuaj ntawm 10% hypertonic sodium chloride daws tuaj yeem txhawb txoj hnyuv Peristalsis, txhim kho plab zom mov.

  • Morpholine CAS 110-91-8

    Morpholine CAS 110-91-8

    Morpholine, tseem hu ua 1,4-oxazacyclohexane thiab diethyleneimine oxide, yog xim tsis muaj xim alkaline oily kua nrog ammonia tsw thiab hygroscopicity. Nws tuaj yeem evaporate nrog dej vapor thiab miscible nrog dej. Soluble nyob rau hauv acetone, benzene, ether, pentane, methanol, ethanol, carbon tetrachloride, propylene glycol thiab lwm yam organic solvents.
    Morpholine muaj cov pab pawg amine thib ob thiab muaj tag nrho cov yam ntxwv tshwm sim ntawm cov pab pawg amine thib ob. Nws reacts nrog inorganic acids los tsim cov ntsev, reacts nrog organic acids los tsim cov ntsev los yog amides, thiab muaj peev xwm ua alkylation tshuaj. Nws tuaj yeem cuam tshuam nrog ethylene oxide, ketones lossis ua cov tshuaj tiv thaiv Willgerodt.
    Vim muaj cov tshuaj lom neeg tshwj xeeb ntawm morpholine, nws tau dhau los ua ib qho ntawm cov khoom lag luam zoo petrochemical nrog kev lag luam tseem ceeb. Nws tuaj yeem siv los npaj cov roj hmab vulcanization accelerators, xeb inhibitors, anti-corrosion agents, thiab cov tshuaj ntxuav xws li NOBS, DTOS, thiab MDS. , descaling agents, analgesics, local anesthetics, sedatives, respiratory system Chemicalbook and vascular stimulants, surfactants, optical bleaches, fruit preservatives, textile printing and dyeing auxiliaries, etc., nyob rau hauv roj hmab, tshuaj, tshuaj tua kab, dyes, coatings, thiab lwm yam. muaj ntau yam kev siv. Hauv cov tshuaj, nws yog siv los tsim ntau yam tshuaj tseem ceeb xws li morpholino, virospirin, ibuprofen, aphrodisiac, naproxen, diclofenac, sodium phenylacetate, thiab lwm yam.
  • 2-Ethylhexylamine CAS: 104-75-6

    2-Ethylhexylamine CAS: 104-75-6

    2-Ethylhexylamine CAS: 104-75-6
    Nws yog cov kua tsis muaj xim thiab pob tshab, me ntsis soluble hauv dej, soluble hauv ethanol thiab acetone. Flamable. Incompatible nrog muaj zog oxidizing neeg sawv cev. Nws yog siv los ua ib qho nruab nrab rau tshuaj tua kab, dyes, pigments, surfactants, thiab insecticides. Nws kuj tseem tuaj yeem siv los tsim cov stabilizers, preservatives, emulsifiers, thiab lwm yam. Txoj kev npaj yog tau los ntawm reacting 2-ethylhexanol nrog ammonia. Hauv tib txheej ntawm cov khoom siv hluav taws xob, 2-ethylhexylamine, di (2-ethylhexyl) amine, thiab tris (2-ethylhexyl) amine tuaj yeem tsim tawm hauv kev sib hloov.
  • p-Toluenesulfonamide CAS 70-55-3

    p-Toluenesulfonamide CAS 70-55-3

    p-Toluenesulfonamide, tseem hu ua 4-toluenesulfonamide, p-sulfonamide, toluene-4-sulfonamide, toluenesulfonamide, p-sulfamoyltoluene, yog ib tug dawb flake los yog nplooj ntawv tshuaj siv lead ua, siv los tsim chloramine-T thiab chloramphenicol, yas manufacturing, , hluavtaws cob, coatings, tshuaj tua kab mob thiab ntoo ua brighteners, thiab lwm yam.
    p-Toluenesulfonamide yog ib qho khoom siv zoo heev rau cov yas thermosetting, haum rau phenolic resin, melamine resin, urea-formaldehyde resin, polyamide thiab lwm yam resins. Ib qho me me ntawm kev sib xyaw tuaj yeem txhim kho kev ua tau zoo, ua kom zoo dua qub, thiab muab cov khoom ua kom zoo nkauj. p-Toluenesulfonamide tsis muaj cov nyhuv softening ntawm cov kua plasticizers, yog incompatible nrog polyvinyl chloride thiab vinyl chloride copolymers, thiab yog ib feem ntawm cellulose acetate, cellulose acetate butyrate thiab cellulose nitrate.
    Txoj kev tsim khoom ua ntej ntxiv ib feem ntawm HN3 dej rau hauv cov tshuaj tiv thaiv lub lauj kaub, ntxiv p-toluenesulfonyl chloride thaum nplawm, thiab qhov kub ib txwm nce mus txog 50 ° C. Tom qab qhov kub thiab txias, cov dej ammonia ntxiv ntxiv. React ntawm 85 ~ 9Chemicalbook0 ℃ rau 0.5h. Cov tshuaj tiv thaiv xaus thaum tus nqi pH nce mus txog 8 txog 9. Txias rau 20 ° C, lim, thiab ntxuav lub ncuav mog qab zib lim dej kom tau cov khoom nyoos. Cov khoom no ces decolorized los ntawm activated carbon, yaj nyob rau hauv alkali, sib cais los ntawm acid, lim thiab qhuav kom tau cov khoom.
  • Tom ntej: Tosyl Chloride CAS 98-59-9

    Tom ntej: Tosyl Chloride CAS 98-59-9

    Tom ntej: Tosyl Chloride CAS 98-59-9
    Tosyl chloride (TsCl), raws li cov khoom siv tshuaj zoo, yog siv dav hauv cov tshuaj zas, tshuaj, thiab tshuaj tua kab. Hauv kev lag luam dyeing, nws yog tsuas yog siv los tsim cov khoom nruab nrab rau disperse, ice dye, thiab acid dyes; nyob rau hauv kev lag luam kws tshuaj, Chemicalbook yog tsuas yog siv los tsim sulfonamides, mesulfonate, thiab lwm yam .; Nyob rau hauv kev lag luam tshuaj tua kab, nws yog tsuas yog siv nyob rau hauv zus tau tej cov mesotrione, sulfotrione, nplua metalaxyl, thiab lwm yam. Nrog rau kev loj hlob tsis tu ncua ntawm cov xim, tshuaj thiab tshuaj tua kab industries, lub thoob ntiaj teb kev thov rau cov khoom no yog loj hlob ib hnub twg.
    Muaj ob txoj hauv kev tseem ceeb rau TsCl: 1. Nws yog tsim los ntawm kev ncaj qha acid chlorination ntawm toluene thiab tshaj chlorosulfonic acid ntawm qhov kub thiab txias. Txoj kev no ua rau o-toluenesulfonyl chloride nrog cov ntsiab lus siab, thiab p-toluenesulfonyl chloride yog nws cov khoom los ntawm cov khoom, thiab ob qho tib si yog qhov nyuaj rau kev sib cais thiab siv ntau lub zog; 2. Toluene thiab chlorosulfonic acid yog ncaj qha chlorinated nrog ntau tshaj chlorosulfonic acid nyob rau hauv lub xub ntiag ntawm tej ntsev thiab ntawm ib tug tej yam kub. Txawm hais tias txoj kev no muaj cov khoom lag luam ntau dua ntawm toluenesulfonyl chloride, qhov kev ua kom huv ntawm tus qauv yog yooj yim thiab siv zog tsawg. Txawm li cas los xij, vim muaj qhov kub thiab txias, cov roj sulfonated sib cais muaj cov sulfones siab thiab muaj nqi siv tsawg. Qhov tseeb tag nrho cov txiaj ntsig tsuas yog kwv yees li 70% hauv Chemicalbook. Tsis tas li ntawd, ob txoj hauv kev muaj kev noj ntau ntawm cov khoom siv raw chlorosulfonic acid thiab cov khib nyiab sulfuric acid uas ua tau dhau lawm, uas tsis tsim nyog rau kev siv thiab kev kho mob. Tseem muaj cov lus ceeb toom los txhim kho txoj kev. Ua ntej, p-toluenesulfonyl chloride nyob rau hauv cov tshuaj tiv thaiv sib tov yog tag nrho crystallized nyob rau hauv tej yam kev mob thiab cov siv lead ua hais yog loj. Cov txheej txheem ntawm kev pom ncaj qha yam tsis muaj hydrolysis yog siv los tshem tawm p-toluenesulfonyl chloride los ntawm kev sib tov. Txawm li cas los xij, tam sim no muaj qee qhov teeb meem hauv kev xaiv cov cuab yeej ua lag luam thiab kev nqis peev loj. Txhim kho cov txheej txheem: tsim nyog catalysts thiab lwm yam kev pom zoo txheej txheem raug xaiv.
    Tosyl chloride (TsCl) yog dawb dawb crystalline hmoov nrog lub melting point ntawm 69-71 ° C. Nws yog ib qho tseem ceeb organic synthesis tshuaj nruab nrab thiab yog siv nyob rau hauv lub synthesis ntawm chloramphenicol, chloramphenicol-T, thiamphenicol thiab lwm yam tshuaj. .
  • Tom ntej: Benzyl Chloride CAS 100-44-7

    Tom ntej: Benzyl Chloride CAS 100-44-7

    Tom ntej: Benzyl Chloride CAS 100-44-7
    Benzyl chloride, tseem hu ua benzyl chloride thiab toluene chloride, yog cov kua xim tsis muaj xim nrog cov ntxhiab tsw muaj zog. Nws yog miscible nrog cov kuab tshuaj organic xws li chloroform, ethanol, thiab ether. Nws yog insoluble hauv dej tab sis tuaj yeem evaporate nrog dej vapor. Nws chav muaj qee yam khaus rau lub qhov muag mucous thiab yog cov kua muag muaj zog. Nyob rau tib lub sijhawm, benzyl chloride kuj yog ib qho nruab nrab ntawm cov organic synthesis thiab yog dav siv nyob rau hauv cov synthesis ntawm dyes, tshuaj tua kab, hluavtaws fragrances, detergents, plasticizers, thiab tshuaj.
    Daim ntawv thov
    Benzyl chloride muaj ntau yam kev siv hauv kev lag luam. Nws yog tsuas yog siv nyob rau hauv cov teb ntawm tshuaj tua kab, tshuaj, txuj lom, zas auxiliaries, thiab hluavtaws auxiliaries. Nws yog siv los tsim thiab tsim benzaldehyde, butyl benzyl phthalate, aniline, phoxim, thiab benzyl chloride. Penicillin, benzyl cawv, phenylacetonitrile, phenylacetic acid thiab lwm yam khoom. Benzyl chloride belongs rau benzyl halide chav kawm ntawm cov tshuaj tiv thaiv kab mob. Nyob rau hauv cov nqe lus ntawm cov tshuaj tua kab, nws muaj peev xwm tsis tsuas yog ncaj qha synthesize lub organophosphorus fungicides Daifengjing thiab Isidifangjing Chemicalbook, tab sis kuj yuav siv tau raws li ib tug tseem ceeb raw khoom rau ntau lwm yam intermediates, xws li cov synthesis ntawm phenylacetonitrile, Benzoyl chloride, m-phenoxybenzaldehyde, thiab lwm yam. Tsis tas li ntawd, benzyl chloride yog dav siv nyob rau hauv cov tshuaj, txuj lom, dye auxiliaries, hluavtaws resins, thiab lwm yam. Nws yog ib qho tseem ceeb intermediate nyob rau hauv tshuaj thiab tshuaj ntau lawm. Tom qab ntawd cov dej khib nyiab los yog cov khoom pov tseg uas tsim los ntawm cov lag luam thaum lub sij hawm tsim cov txheej txheem inevitably muaj ib tug loj npaum li cas ntawm benzyl chloride intermediates.
    Chemical Properties:
    Cov kua tsis muaj xim thiab pob tshab nrog cov ntxhiab tsw muaj zog. Kua muag-jerking. Soluble hauv cov kuab tshuaj organic xws li ether, cawv, chloroform, thiab lwm yam, insoluble hauv dej, tab sis tuaj yeem evaporate nrog dej vapor.
  • N-Isopropylhydroxylamine CAS 5080-22-8

    N-Isopropylhydroxylamine CAS 5080-22-8

    N-Isopropylhydroxylamine yog cov kua tsis muaj xim nrog cov ntxhiab tsw ammonia.
    - Nws yog soluble nyob rau hauv dej thiab feem ntau cov organic solvents, tab sis insoluble nyob rau hauv non-polar solvents.
    - Nws yog ib qho nucleophile uas muaj cov tshuaj tiv thaiv ntxiv rau cov tebchaw xws li esters, aldehydes, thiab ketones.
    siv:
    - N-Isopropylhydroxylamine feem ntau yog siv rau hauv cov organic synthesis cov tshuaj tiv thaiv, tshwj xeeb tshaj yog ua ib qho amination reagent.
    - Nws tuaj yeem siv los tsim cov khoom lag luam amination ntawm aldehydes, ketones, thiab esters, thiab koom nrog qee qhov kev cuam tshuam cyclization.
    - Nws tseem tuaj yeem siv los ua cov tshuaj txo qis kom txo qis cov tshuaj tiv thaiv hauv cov organic synthesis.
    Txoj kev npaj:
    - Txoj kev npaj ntau ntawm N-isopropylhydroxylamine yog ua kom muaj kev cuam tshuam ntawm isopropyl cawv kom tau N-isopropylisopropylamide, thiab tom qab ntawd siv cov roj ammonia los ua rau nws tsim N-isopropylhydroxylamine.
    Cov ntaub ntawv kev ruaj ntseg:
    - N-Isopropylhydroxylamine yog ib yam khoom corrosive uas tuaj yeem ua rau khaus thiab kub hnyiab ntawm daim tawv nqaij thiab qhov muag.
    - Hnav cov hnab looj tes tiv thaiv, tsom iav thiab lwm yam khoom siv tiv thaiv tus kheej thaum siv.
    - Siv nyob rau hauv qhov chaw uas muaj cua zoo thiab tsis txhob nqus nws cov vapors.
  • 2,6-Dimethylaniline CAS 87-62-7

    2,6-Dimethylaniline CAS 87-62-7

    2,6-Dimethylaniline yog cov kua daj me ntsis nrog cov txheeb ze ntawm 0.973. Nws yog insoluble hauv dej, soluble hauv cawv, ether, thiab soluble hauv hydrochloric acid.
    Txoj kev sib txuas ntawm 2,6-dimethylaniline feem ntau suav nrog 2,6-dimethylphenol aminolysis method, o-methylaniline alkylation method, aniline methylation method, m-xylene disulfonation nitration method thiab m-xylene disulfonation method. Toluene nitration txo txoj kev, thiab lwm yam.
    Cov khoom no yog ib qho tseem ceeb nruab nrab ntawm kev tsim tshuaj tua kab thiab tshuaj, thiab tseem tuaj yeem siv los ua raw khoom rau cov khoom siv tshuaj xws li dyes. Combustible los ntawm qhib nplaim taws; reacts nrog oxidants; decomposes lom nitrogen oxide pa luam yeeb nrog kub kub.